a metallic cube of edge 1cm is drawn into a wire of diameter 4mm , then find the length of wire
Wafa Siddharth Seth
Asked: 3 years ago2022-10-29T01:23:13+05:30
2022-10-29T01:23:13+05:30In: Class 10
A metallic cube of edge 1cm is drawn into a wire of diameter 4mm. Then find the length of the wire
A metallic cube of edge 1cm is drawn into a wire of diameter 4mm. Then find the length of the wire
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side of cube (a)= 1 cmvolume of cube = a³ = 1 cm³ = 1000 mm³volume of material remains sameSo,volume of cube = volume of wirevolume of wire = π r² × h1000 mm³ = π\xa0× (4/2)² × hh = 1000/[ π\xa0×\xa04]h = 250/π mm = 25/π cm\xa0